| Phone Prefix | Range | Phones Recorded |
|---|---|---|
| (301) 944-30** | (301) 944-3019 - (301) 944-3098 | 3 |
| (301) 944-31** | (301) 944-3100 - (301) 944-3153 | 2 |
| (301) 944-32** | (301) 944-3211 - (301) 944-3253 | 4 |
| (301) 944-33** | (301) 944-3300 - (301) 944-3388 | 17 |
| (301) 944-34** | (301) 944-3418 - (301) 944-3498 | 7 |
| (301) 944-35** | (301) 944-3545 - (301) 944-3599 | 3 |
| (301) 944-36** | (301) 944-3617 - (301) 944-3689 | 2 |
| (301) 944-37** | (301) 944-3736 - (301) 944-3736 | 1 |
| (301) 944-38** | (301) 944-3810 - (301) 944-3882 | 5 |
| (301) 944-39** | (301) 944-3910 - (301) 944-3998 | 11 |
US Phone Directory: (301) 944-3***
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